<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    body {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    button {
      font-size: 30px;
    }
  </style>
</head>
<body>
  <form accept="/" method="POST">
    <button>点击转账</button>
  </form>
  <script>
    function locationTop(){
      if (top.location != window.location) {
        top.location = window.location;
      }
    }

    locationTop();
  </script>
</body>
</html>
